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Move capture in lambda
...copy_ctor const& object)
{
std::swap(wrapped_object, const_cast<move_with_copy_ctor&>(object).wrapped_object);
}
// access to wrapped object
T& operator()() { return wrapped_object; }
private:
T wrapped_object;
};
template <typename T>
move_wit...
Swift Beta performance: sorting arrays
...ers[0] << "\n";
cout << "Elapsed time: " << duration_cast<duration<double>>(end - start).count() << "\n";
return 0;
}
Results:
Apple Clang 6.0
clang++ --version
Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin...
Java 8 Iterable.forEach() vs foreach loop
...ator) and cannot be used in a for-each, only with a forEach(). I recommend casting Streams into Iterables with (Iterable<T>)stream::iterator. A better alternative is to use StreamEx which fixes a number of Stream API problems, including implementing Iterable.
That said, forEach() is useful for...
How to design a database for User Defined Fields?
...r to json. It features a typesave interface to read and write data without casting and with great programming language integration. That's really great. It has the same problem as all of this kind of "documents" in databases. It's hard to query for spcific values and it cannot easily reference data ...
What are the effects of exceptions on performance in Java?
... with the success object and then doing an "instanceof" check and a couple casts to get the success or failure information.
It turns out that at the risk of type safety, Sentinel values are faster than exceptions, but only by a factor of roughly 2x. Now, that may seem like a lot, but that 2x only c...
Performance optimization strategies of last resort [closed]
... clear on a load op. Find places where floats, vectors, and ints are being cast to one another and eliminate them. Use __restrict liberally to promise the compiler about aliasing.
Microcoded operations. Most processors have some operations that cannot be pipelined, but instead run a tiny subroutine ...
The Definitive C++ Book Guide and List
...lores the 1989 C++ 2.0 version - Templates, exceptions, namespaces and new casts were not yet introduced. Saying that however, this book goes through the entire C++ standard of the time explaining the rationale, the possible implementations, and features of the language. This is not a book to learn ...
Accessing class variables from a list comprehension in the class definition
... a positional argument, the range(1) iterable to use for its looping code, cast to an iterator. As shown in the bytecode, range(1) is evaluated in the class scope.
From this you can see that the only difference between a code object for a function or a generator, and a code object for a comprehensi...
Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...
You can't cast a delegate that has no parameters and returns string to an Action. I don't see why there is ambiguity.
– jason
Jan 13 '10 at 14:21
...
Fastest way to list all primes below N
...
When casting in the primesfrom2to() method, should the division be inside of the brackets?
– 355durch113
Oct 16 '15 at 22:52
...